Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 357 · 40 questions

What you do (Choose the right way): 1. Put cotton or cloth in the funnel, then layers of sand and small pebbles. 2. Stand the funnel in a clean glass. 3. Pour muddy water in slowly and watch what drips out. 4. Compare the colour before and after — never drink it — and wash your hands.

1. 1.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
2. 2.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sand (d) it turns to sugar
3. 3.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a balloon (c) a mirror (d) a battery cell
4. 4.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
5. 5.True or false: bran from wheat flour is done by sieving. (a) False (b) True
6. 6.🫗 How do we separate small stones from dal? (a) handpicking (b) sieving (c) winnowing (d) evaporating
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) yeast (d) cotton or cloth
8. 8.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
9. 9.True or false: husk from rice grain is done by evaporating. (a) False (b) True
10. 10.True or false: salt from sea water is done by winnowing. (a) False (b) True
11. 11.True or false: bran from wheat flour is done by handpicking. (a) True (b) False
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) muddy water (d) a battery cell
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) a clean glass (d) muddy water
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
16. 16.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
17. 17.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) winnowing (d) sieving
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) True (b) False
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) turmeric powder (c) a funnel (d) cotton or cloth
20. 20.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) leaves stay behind (d) both stay behind
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) turmeric powder (c) muddy water (d) a clean glass
22. 22.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
25. 25.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a magnet (d) a funnel
26. 26.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, if it is cold (d) yes, always
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) False (b) True
28. 28.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a clean glass (c) sand and pebbles (d) muddy water
29. 29.True or false: muddy water is needed for the muddy water filter. (a) False (b) True
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the filter material (c) the same muddy water (d) the same funnel
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a magnet (d) a clean glass
32. 32.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) chaff from wheat grain (c) sugar from sugar water (d) small stones from dal
33. 33.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) yeast (c) a funnel (d) sand and pebbles
34. 34.True or false: salt from sea water is done by sieving. (a) False (b) True
35. 35.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
36. 36.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
37. 37.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) nothing (c) the salt (d) the mud
38. 38.True or false: a magnet is needed for the muddy water filter. (a) False (b) True
39. 39.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) turmeric powder (c) muddy water (d) a battery cell
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True

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